Comment on “Can Charge Transfer Across C─H···O Hydrogen Bonds Stabilize Oil Droplets in Water?”
P. Singh, C. E. Rani, S. Pullanchery, S. Roke · 2026
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Description
P. Singh and colleagues commented in 2026 on whether charge transfer across hydrogen bonds can stabilise oil droplets in water. Stable oil nanodroplets carry a negative surface charge, attributed either to hydroxide adsorption or to charge transfer across improper C-H···O hydrogen bonds. Zhao and colleagues had questioned charge transfer based on simulations of hexane in water.
Singh and colleagues argue hexane is a poor model, since it dissolves nine orders of magnitude more readily than hexadecane and does not form kinetically stable droplets. They also correct a misconception about a blue shift in earlier scattering work and note no molecular level proof for hydroxide adsorption either. The comment sharpens a live debate on oil water interfaces.
Catalog record
| CREATOR | P. Singh, C. E. Rani, S. Pullanchery, S. Roke |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 48 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |